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Yes, it should read in the 1 ohm range, but not 0, which is why I said use a quality DVM. Pull in current on that solenoid is around 10 amps, if I recall.
Yes, it should read in the 1 ohm range, but not 0, which is why I said use a quality DVM. Pull in current on that solenoid is around 10 amps, if I recall.
I think the op is just going to have to find a short somewhere, it appears that the bike is not wired as it came from the factory, because the original wiring configuration uses accessory power for terminal 30 of the starter relay.
So if there were a short in the wire going to the solenoid, or in the solenoid itself, the accessory breaker should be the one that is tripping.
Here is a snip of the wiring diagram for 1990 FXR, from the HD Service Information Portal, you can see some weird wiring here, as it shows the starter relay terminal 30 gets power from the input side of the accessory breaker (this would leave the wire unprotected, and makes no sense at all).
Before going any further I would definitely do as Dr Hess suggested. If you run a wire from the battery to the solenoid and it works then it's in your wiring. If it still does not work then its your solenoid. Good way to narrow down where to look
Before going any further I would definitely do as Dr Hess suggested. If you run a wire from the battery to the solenoid and it works then it's in your wiring. If it still does not work then its your solenoid. Good way to narrow down where to look
Great advice Farm Shop. I was always taught to use the process of elimination. Work from the problem to the source. Is it possible the solenoid is shorting to the frame or ground when activated?
Here is a snip of the wiring diagram for 1990 FXR, from the HD Service Information Portal, you can see some weird wiring here, as it shows the starter relay terminal 30 gets power from the input side of the accessory breaker (this would leave the wire unprotected, and makes no sense at all).
Judging by the schematic.. The accessory breaker is getting its power from the main breaker but if the starter relay terminal 30 is on the input side of the accessory breaker, it's still getting its power from or being protected by the main breaker, therefore cutting power to everything.. So even the wiring for my 98 is basically the same because it's still on the output side of the 30 amp but the input side of the other breakers.
With that in mind the only two things that could be taken out the main at this point is either, the relay is shorted on the inside or it's the starter solenoid that's shorting...
The accessory breaker is getting its power from the main breaker but if the starter relay terminal 30 is on the input side of the accessory breaker, it's still getting its power from or being protected by the main breaker, therefore cutting power to everything..
Good catch 98.
Originally Posted by 98hotrodfatboy
either, the relay is shorted on the inside or it's the starter solenoid that's shorting...
Or the wire between the relay and the solenoid is shorting to ground. Asked OP about this back in post 11.
OP, disconnect the green wire from the solenoid (move the wire as little as possible), press the start button, does the breaker trip?
If it still trips the breaker, I think we can we can eliminate the solenoid from the suspect list...
Last edited by Dan89FLSTC; Sep 16, 2020 at 10:47 AM.
One thing I'm curious about is if this is the same problem he had that caused him to rebuild his solenoid originally or if he had a different problem and this one only started after he rebuilt his solenoid?
Good question... Most likely the original issue Mike....
s*** I don't know anybody that's going to say, " oh yeah, I think I'll rebuild my solenoid today "...... Lol... Don't take me serious Zdollar ..
Sometimes you got to have a little chuckle in there too....
If you did what I said, the breaker would not trip because you bypassed the breaker. Worst case, the wire in your hand would get very hot, and you would hopefully remove it before it went too far. Best to use an ammeter on it, as I also said. So, what exactly did you do? Or better yet, do what I said and let's see if the wiring is bad or the solenoid. Also, remove the wires and measure the resistance of the solenoid pull in to ground with a quality DVM.
your suggestion was to connect the battery, directly to the blade connector on the solenoid correct? That still trips the breaker which makes me think it has to do with the ground connection from the starter motor to primary? And Ill get you a meter reading in a bit
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